erase.py is a removes Yahoo SiteBuilder's watermarks from Fade Lee's website.
Specify the SITE_ROOT in erase.py as the place where you have the website. Then run erase.py to remove watermarks. While it's at it, it adds Piwik tracking (you'll need to change the snippet for different sites) and commits to a git repository.
If you use the included crontab, erase.py will runs every two minutes, but not when sftp is running. I do forsee problems if it happens to run when sftp is running, but those should be fixed by uploading the site again.